How Do I Add Global CSS in WordPress?

In order to add global CSS in WordPress, you will first need to enable the Global Media Library. To do this, go to the Settings menu in WordPress and click on the Media Library link. This will open the Global Media Library screen. To enable global CSS, click on the Enable Global CSS checkbox.

WordPress will then generate a new style sheet called style.css and place it in the root of your WordPress installation. You can now use this style sheet to apply global CSS to all of your WordPress pages and posts. To apply global CSS to a specific page or post, you can use the following code:.

where xx-large is the size of the font you want to use.